Concave vehicle-tire.



Nb. 885,888. PATENTED APR. 28, 1908.

A. G. THOMSON.

GONOAVB VEHICLE TIRE. APPLIG IIIIIIIIIII 015.29, 1996.

IWIQINESSES:

No. ssaess.

. surf garrison GALE THOMSON, or SAN raancisoo, CALIFORNIA.

I CONGAVE VEHICLE-TIRE.

Serial No. 341,079.

To all whom a'tmay concern:

Beit known that. L'AR HURGALE TH0M- soN, citizen of the United States, residing at San Francisco, in the and State, of C aliforniaghave inventedcertain new and useful Improvements inCon cave Vehicle+Tire s, of which the following is a specification;

My invention relates tofimprovements in concave vehlcle tires,

The object of myinvention'is to provide a concave vehicle tire of -metal which is constructed insectio-ns havinggreat resiliency strength and lightness and permitting the ready ex raction of asection in caseof injury to the same or fol-some other reason, and the insertion of a fresh sectionin place thereof,

and also having a strong and lasting wearing ace.,- My tire is peculiarlyad'apted to use on automobiles andbeing referably constructed of steel is comparatively light r.

My invention consists in the novel construction and arrangement ofparts described in the following specification, illustrated in the accompanying the ap ended claims. a In t e drawings 'Fi ure'l shows an elevation ofga vehicle whee encircled by my tire.

'Fig. 2 representsal section of the'wheel to show its interior. ig; 3 shows a transverse section of part of thetire. In the figures A represents a vehicle Wheel.

' Bin Fig.- l shows-myconcavemetallic vehicle'tire, ,2;shows one of the sections of the tire, 3 represents the overlapping tongue o f said section and 4 the inner sustaining tongue of the same, the said tongues contacting as shown inFig. 2 and each section'havingthe overlapping tongue 3 at one end and the-inner tongue 4, at the other end so that theoverlapping tongue of; one-section engages the inner sustaining tongue of the other section, thereby forming when all the sections arejoined one continuous tire; In Fig. 1 the equidistant lines'upon the periphery of the tire indicate the point of joining of the section's exterio'rly and the formof the tongues as engaged interiorly is shown by dotted lines in Fig. 2. 9 arid 10 indicate shoulders or county of San FI'GJICISCO' drawing and claimed in walls to hold the section in position when adj usted. The tire has a wearing ridge 5 which may be indented, roughened or treated in any other manner to prevent slipping if preferred. The ridges 6 which divide the tire centrally have the flanges 7 which fit in grooves on the rim of the wheel as iswell known in the art. The tongue 4 is much thinner than ton us 3 which results in in creasing the resi iency of the tire. The walls 9 and 10 are curved adapting them for engagement with the curvature of the tongues, from the ends of which walls the sections run vertically to the base thereof at ridges 6., a plurality of sections as joined in ,1g.-2 indicating the lines thereof. The ends of the sections are cut at reverse inclines, and when the sections are in position-the abutting ends prevent movement or mutual ap roach of the sections after'bein'g properly adjusted orpositioned.

, lthough I have shown the preferred embodiment of my invention, the form thereof may be somewhat modified, and I'therefore reserve the right to make all changes which fall within its spirit and scope.

Having thus described my invention what I claim, and-desire to secure b'yLetters Patent is A wheel tire composed of a plurality of separable independent counterpart sections,

each section comprising a body having a tongue projecting from one edge thereof, and

' a tongue of equal length but of less thickness projecting from the opposite edge, the said tongues constituting a part of'the sides of the tire with the end of one tongue at a reverse incline to the end of the other tongue.

2. A wheel tire composed of .a plurality of se arable inde endent counterpart sections te escoping eac other,each section embodying an integral tread portion, sides, and rim engaging portion, the ends of the said sections being on reverse inclines preventing the mutual approach of the sections after their adjustment, and the treads of said sections having integral ridges forming a wearing sur- .face for the tire, substantially as described.

3. A wheel tire'composed of a plurality of separable independent counterpart sections,

each section embodying an integral tread,

sides, and a rim engaging portion, said rim Patented Aprill28, 190B. 1

lOO.

e ridges upon the periphery thereof forming engagingport-ion having divided flange ridges arranged to meet co-ineidentiy; the ends of the sections being out at reverse indines 150 each other and Ehe treads having In testimony whereof I affix my signature m presence of two wltnesses.

ARTHUR GALE THOMSON.

Witnesses: 1

C. P. SONNTAG,

Lt SQNNTAG.

wearing surface for the tire, substantially as described. 

